Add support for devfs. In other words, for -CURRENT, make work at all
again for normal device nodes.
This commit is contained in:
parent
125c50cdeb
commit
fca066fe02
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=88051
@ -66,6 +66,7 @@ static const char rcsid[] =
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#include <sys/file.h>
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#include <ufs/ufs/quota.h>
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#include <ufs/ufs/inode.h>
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#include <fs/devfs/devfs.h>
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#include <sys/mount.h>
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#undef _KERNEL
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#include <nfs/nfsproto.h>
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@ -142,6 +143,7 @@ void dommap __P((struct kinfo_proc *kp));
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void vtrans __P((struct vnode *vp, int i, int flag));
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int ufs_filestat __P((struct vnode *vp, struct filestat *fsp));
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int nfs_filestat __P((struct vnode *vp, struct filestat *fsp));
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int devfs_filestat __P((struct vnode *vp, struct filestat *fsp));
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char *getmnton __P((struct mount *m));
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void pipetrans __P((struct pipe *pi, int i, int flag));
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void socktrans __P((struct socket *sock, int i));
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@ -466,6 +468,12 @@ vtrans(vp, i, flag)
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if (!ufs_filestat(&vn, &fst))
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badtype = "error";
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break;
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case VT_DEVFS:
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if (!devfs_filestat(&vn, &fst))
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badtype = "error";
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break;
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case VT_NFS:
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if (!nfs_filestat(&vn, &fst))
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badtype = "error";
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@ -570,6 +578,39 @@ ufs_filestat(vp, fsp)
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return 1;
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}
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int
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devfs_filestat(vp, fsp)
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struct vnode *vp;
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struct filestat *fsp;
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{
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struct devfs_dirent devfs_dirent;
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struct mount mount;
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struct vnode vnode;
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if (!KVM_READ(vp->v_data, &devfs_dirent, sizeof (devfs_dirent))) {
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dprintf(stderr, "can't read devfs_dirent at %p for pid %d\n",
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(void *)vp->v_data, Pid);
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return 0;
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}
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if (!KVM_READ(vp->v_mount, &mount, sizeof (mount))) {
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dprintf(stderr, "can't read mount at %p for pid %d\n",
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(void *)vp->v_mount, Pid);
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return 0;
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}
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if (!KVM_READ(devfs_dirent.de_vnode, &vnode, sizeof (vnode))) {
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dprintf(stderr, "can't read vnode at %p for pid %d\n",
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(void *)devfs_dirent.de_vnode, Pid);
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return 0;
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}
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fsp->fsid = (long)mount.mnt_stat.f_fsid.val[0];
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fsp->fileid = devfs_dirent.de_inode;
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fsp->mode = (devfs_dirent.de_mode & ~S_IFMT) | S_IFCHR;
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fsp->size = 0;
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fsp->rdev = dev2udev((dev_t)vnode.v_rdev);
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return 1;
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}
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int
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nfs_filestat(vp, fsp)
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struct vnode *vp;
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